Trying New Things... like Jackhammering

So in order to same some $$$ and move the project along, Chris jackhammered the Asphalt slab in the Carport section of the barn. He has never jackhammered anything before. But how hard could it be right? Really hard. I actually tried it myself for like 1 minute. That thing is heavy, let alone the arm shaking, leaning it on your leg, sweating for no reason but apparently a big reason....